SATHEE: Thermodynamics Question 27

Thermodynamics Question 27

Question: In an adiabatic expansion of a gas initial and final temperatures are $T_{1}$ and $T_{2}$ respectively, then the change in internal energy of the gas is

[MP PET 1997]

Options:

A) Zero

B) ?100 J

C) 200 J

D) 100 J

Show Answer

Answer:

Correct Answer: D

Solution:

For adiabatic process from FLOT $Δ W = - Δ U$

$(∵ Δ Q = 0)$

Therefore $Δ W = - (- 100) = + 100 J$

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Thermodynamics Question 27

Question: In an adiabatic expansion of a gas initial and final temperatures areT1 and T2 respectively, then the change in internal energy of the gas is

Options:

Answer:

Solution:

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Question: In an adiabatic expansion of a gas initial and final temperatures are $T_{1}$ and $T_{2}$ respectively, then the change in internal energy of the gas is